Studio 3.0 Wireless Top Headband Replacement Parts Accessories Studio 3 A1914 Headband Repair Kit Compatible with Studio 2.0 / Studio 3.0 Wireless (Shadow Grey)Compatible with: Studio 2. 0 (Model B0500 B0501) Studio 3. 0 ( Model A1914) Wireless Bluetooth Over Ear Headphone Attention: the original logo was cover by our brand Knomix,you need to remove the label or the protective film then you could find the original logo Product Dimensions: 9. 05 X 1. 06 inches ( L x W: 23 X 2. 7 cm) (Please read the replacement headband dimension before purchasing, or you may order wrong repair headband for headphones)